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US 6,919,518 B2Granted
Phase flux barriers for transfer switch
AssigneeOnan Corporation
InventorsLoren L. Rademacher, Larry H. Smith, Joseph T. Miller
Life of this patent
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Abstract
A transfer switch that includes output contacts, primary input contacts, secondary input contacts and a switch stack. The switch stack alternately connects the output contacts to the primary input contacts and the secondary input contacts via at least one conductive path. The transfer switch further includes at least one flux barrier that is at least partially positioned near the conductive path to minimize magnetic interaction with the conductive path as current travels through the switch stack.
Claims14
A transfer switch comprising:
- output contacts;
- primary input contacts;
- secondary input contacts;
- and
- a switch stack alternately connecting the output contacts to the primary input contacts and the secondary input contacts via at least one conductive path;
- and
- a magnetic flux barrier at least partially positioned near the conductive path to minimize magnetic interaction with the conductive path as current travels through the switch stack.
4 more elements
A transfer switch comprising:
- output contacts;
- primary input contacts;
- secondary input contacts;
- and
- a switch stack alternately connecting the output contacts to the primary input contacts and the secondary input contacts via at least one conductive path;
- and
- a flux barrier at least partially positioned near the conductive path to minimize magnetic interaction with the conductive path as current travels through the switch stack, wherein the flux barrier is a planar sheet made of steel.
4 more elements
A transfer switch comprising:
- output contacts;
- primary input contacts;
- secondary input contacts;
- a switch stack alternately connecting the output contacts to the primary input contacts and the secondary input contacts via a conductive path;
- and
- means for reducing magnetic interaction with the conductive path in the transfer switch.
3 more elements
Dependencies are inferred from the claim text.